申请人:OTSUKA KAGAKU KABUSHIKI KAISHA
公开号:EP0503604A2
公开(公告)日:1992-09-16
The present invention provides an allenyl β -lactam compound represented by the formula (1)
wherein R¹ is a hydrogen atom, halogen atom, amino or protected amino, R² is a hydrogen atom, halogen atom, lower alkoxyl, lower acyl, lower alkyl, lower alkyl substituted with hydroxyl or protected hydroxyl, hydroxyl or protected hydroxyl, R¹ and R² representing =O when taken together, R³ is a hydrogen atom or carboxylic acid protecting group, and X is the group -SO₂R⁴ or the group -SR⁴, R⁴ being substituted or unsubstituted aryl or substituted or unsubstituted nitrogen-containing aromatic heterocyclic group.
本发明提供了一种由式(1)表示的异戊烯基β-内酰胺化合物
其中 R¹ 是氢原子、卤素原子、氨基或受保护的氨基,R² 是氢原子、卤素原子、低级烷氧基、低级酰基、低级烷基、被羟基或受保护的羟基取代的低级烷基、羟基或受保护的羟基、R¹ 和 R² 合在一起时代表 =O,R³ 是氢原子或羧酸保护基团,X 是基团 -SO₂R⁴ 或基团 -SR⁴,R⁴ 是取代或未取代的芳基或取代或未取代的含氮芳香杂环基团。